Paver

Abstract

The invention relates to a paver, comprising a frame supported by a chassis, at least one primary drive source, a hydraulic system, a paving plate supported in an articulated manner by means of a traction arm, and a pitch supply device, according to the invention, the asphalt supply device has a storage tank, a longitudinal conveying device for conveying from the storage tank to a transverse distribution worm, and a channel plate device arranged in front of the transverse distribution worm in the laying travel direction, the channel plate device having a channel plate base section of a transverse distribution channel arranged in front of a paving plate base body of the paving plate, the channel plate device is provided with a channel plate which can be folded at least in sections and serves as an extension of a channel plate base section in the lateral direction of the pavement plate base body and relative to a position transverse to the pavement driving direction. The channel plate as a folding channel plate is rotatably hinged to a support structure adjacent to the channel plate base section by means of a hinge about at least one pivot axis and is locked by a locking element in order to prevent accidental pivoting.

Description

Technical Field

[0001] This invention relates to a paving machine. Background Technology

[0002] Document DE 200 01 246 U1 discloses a paving machine with a frame equipped with a traveling mechanism. A support structure for a distribution worm is mounted on the rear wall of the frame at an adjustable height. Furthermore, a channel plate is arranged between the distribution worm and the traveling mechanism. To allow for quick height adjustment of the distribution worm without the need for time-consuming and laborious adjustments to the channel plate and / or supporting devices, the design specifies that the channel plate can be adjusted in height together with the distribution worm. Thus, each time the height of the distribution worm is adjusted, the channel plate can maintain an optimal position relative to the distribution worm for material conveying.

[0003] Because the extension section is connected to the channel plate located on the supporting structure, the operation of the extension section is greatly simplified. Any adjustments save time, thereby increasing the possibility of expanding the paver's specific working width by using a side-mounted screw conveyor. The corresponding screw conveyor or screw widener is installed together with the channel plate. These channel plates are mounted in front of the corresponding worm shaft along the direction of travel, either on the screw conveyor frame component or directly on the paver's frame. They form what is known as a auger groove together with the paving slab.

[0004] The access panel extensions are modular, short and long panel sections that can be selectively combined and directly secured together via end flanges, particularly by threading. To prevent the access panel extensions from being crushed by the paving material and the lateral distribution worm gears along the operating direction, and to support additional weight, counter-pressure struts and lifting struts are installed. The counter-pressure struts are typically directly supported on the extensions, as described in document EP 2 169 117 B1. If installation is performed using only the panel width, the access panel and distribution worm gear extensions are removed.

[0005] Since adjusting the working width of the paving slab also changes the width of the paving material, excessive material application may occur in the direction of travel of the paving machine using the paving slab, in front of the distribution worm gear. To prevent this, it is also known from document EP 3 988 714 A1 that the effective width of the channel slab assembly should be adaptable to the working width of the paving slab in a manner easily operated by the operator. For this purpose, an extension device is provided on the channel slab base, which includes a first channel slab and a second channel slab rotatable relative to the first channel slab. The channel slab extension component is preferably rigidly connected to the channel slab base, for example, by bolts.

[0006] The disadvantage of this approach is that, while the effective width of the access panel can be adjusted to prevent unnecessary material application in the paving machine's direction of travel, the access panel component structure must be disassembled to load the paving machine onto a low-load truck.

[0007] Without widening components (basic working width), the paving machine can be transported from one construction site to another on highways using a low-platform truck with a width of 3 meters (maximum transport width). To pave roads with widths ranging from approximately 3 to 16 meters, the lateral distribution worm gear at the rear of the paving machine needs to be widened. This is achieved specifically through auger extensions and auger support plates. Depending on the road width, each auger support plate is bolted to the paving machine. Because the paving machine is transported from one construction site to another using a low-platform truck, the auger extension and corresponding maneuvering plate devices must be installed and removed before and after using the machine at each construction site to ensure that the transport width does not exceed the maximum value. Summary of the Invention

[0008] Therefore, the technical problem to be solved by the present invention is to provide a paving machine in which the effective width of the channel plate device can be adjusted in a simple manner for the operator to match the working width of the (paving) plate, and will not exceed the maximum transport width of the paving machine when transported on a low-platform truck.

[0009] The aforementioned technical problem is solved by a paving machine having a frame supported by a traveling mechanism, at least one primary drive source, a hydraulic system, a paving slab hinged to the ground via a traction arm, and an asphalt supply device. The asphalt supply device has a storage tank, a longitudinal conveying device for conveying from the storage tank to a lateral distribution worm, and a channel plate device arranged in front of the lateral distribution worm along the paving travel direction. The channel plate device has a channel plate base section for lateral distribution channels, the lateral distribution channels being located in front of the paving slab base of the paving slab. According to the invention, the channel plate device has at least segmented foldable channel plates in a position laterally to the paving slab base and relative to the lateral direction of paving travel. As an extension of the channel plate base section, the channel plate is rotatably hinged as a foldable channel plate around at least one pivot axis to a support structure adjacent to the channel plate base section and locked by a locking element to prevent accidental pivoting.

[0010] This provides a paving machine in which the access panel assembly does not require disassembly and installation during transport. According to the invention, the access panel assembly is connected to the paving machine via access panel folding members that can be mounted on both sides, the folding members folding, for example, parallel to the paving machine. Here, although the access panels remain mounted on the paving machine during transport, they do not exceed the maximum transport width of the paving machine. This saves time and effort for the paving machine operator. To mitigate wind forces that the paving machine may experience during transport on a low-platform truck, rotatable access panels can be positioned at an angle of + / -10° on a vertical plane opened by the tow arm, thus functioning similarly to spoilers. Therefore, these panels can also be wedge-shaped and pointing forward.

[0011] Another significant advantage is that the rotatable hinge of the folding channel panel can be achieved using hinges with one or more, particularly two, axes of rotation. This double hinge allows the folding channel panel to be locked against torsion. In the double hinge, each hinge constitutes a locking element of the other hinge and complements each other for the open and folded positions. According to the invention, the hinge can be designed as a pivot journal support with one or more support holes. The folding of the channel panel can be mechanical, hydraulic, or electric. Here, the diagonal brace can also be housed in the folded channel panel.

[0012] Other advantages and design solutions of the present invention can be found in the following description and dependent claims. Attached Figure Description

[0013] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0014] Figure 1 A top view schematic diagram of a paving machine with a flip-up channel slab assembly is shown.

[0015] Figure 2 Showing according to Figure 1 A side view schematic diagram of a paving machine with a closed channel plate device.

[0016] Figure 3 An enlarged schematic diagram is shown at the connection point between the foldable channel slab and the support structure adjacent to the channel slab base section on the front side along the travel direction of the paver.

[0017] Figure 4 Showing according to Figure 3 The diagram shown is an enlarged view of the connection point of the foldable channel panel on the rear side along the travel direction of the paver.

[0018] Figure 5 A perspective view from below shows a variation of a paving machine with a flip-up channel slab.

[0019] Figure 6 The connection between the opened channel plate and the supporting structure is shown on the front side. Figure 5 A partial schematic diagram,

[0020] Figure 7 Show Figure 6 A magnified view of the local area marked in the middle.

[0021] Figure 8 As shown Figure 5 The diagram shown is of a paving machine with a closed channel slab.

[0022] Figure 9 Show Figure 8 A magnified view of the local area marked in the middle. Detailed Implementation

[0023] Figures 1 to 4 A paving machine is shown, comprising a frame 2 supported by a traveling mechanism 1, at least one primary drive source, a hydraulic system, and a paving slab 4 hingedly supported by a traction arm 3. Furthermore, the paving machine includes an asphalt supply device having a storage tank 5, a longitudinal conveying device 7 for conveying from the storage tank 5 to a transverse distribution worm gear 6, and a channel plate device 8 arranged in front of the transverse distribution worm gear 6 along the paving travel direction R. The channel plate device 8 has a channel plate base section 9 for a transverse distribution channel 11, the transverse distribution channel being positioned in front of the paving slab base 10 of the paving slab 4.

[0024] This relates to a common structure for paving machines. The traveling mechanism 1 can be a tracked or wheeled traveling mechanism. The longitudinal conveying device 7 preferably includes two parallel conveyor belts to convey materials to the right and left sides of the transverse distributor, respectively. The transverse distributor is designed here as a transverse distributing worm gear 6.

[0025] According to the present invention, the channel plate device 8 is designed such that at least segmented foldable channel plates 12 and 13 are provided laterally on the paving plate base 10 and relative to a position transverse to the paving travel direction R, serving as extensions of the channel plate base section 9. For this purpose, the channel plate 12 is rotatably hinged on both sides to a support structure 15 adjacent to the channel plate base section 9 via hinges 14 using folding mechanisms and locked by locking elements 16 to prevent accidental pivoting.

[0026] A selectable number of channel plates 13 can be mounted on rotatably hinged channel plates 12 of the paving machine via a support structure 15 to achieve the desired extension of the channel plate assembly 8, thereby reaching the desired paving width. Installation can be achieved, particularly mechanically and preferably rigidly, by insertion, bolts, etc., such as... Figure 1As shown. Channel plates 12 and 13 preferably form an integral part for the rotating mechanism, having an effective length relative to the axis passing through the pivot of hinge 14.

[0027] To transport the paving machine onto, for example, a low-platform cargo truck (not shown), the folding mechanism / hinge 14 according to the invention causes the passage plates 12, 13 to rotate as a whole around a pivot axis X along the paving travel direction R, i.e., forward, preferably substantially perpendicular or inclined to the vertical direction. Therefore, a lateral abutment position relative to the paving machine's travel mechanism 1 can be adopted.

[0028] Thus, the integrally mounted channel plates 12 and 13 are closed by means of the channel plate 12 (mounted support plate) rotatably hinged to the support structure 15 of the paver. This forms a rotatable side cover element for transporting the paver on the roadway. Figure 1 As shown, the working width of the paving machine is reduced to the transport width without the need for partial disassembly of the access slab 8. The above embodiment applies to both sides of the access slab device 8, but is equally applicable to unilateral extension.

[0029] like Figures 5 to 9 As shown, the foldable channel plates 12 and 13 can be positioned at an opening angle of + / -10° relative to the outer boundary of the side of the trimmer.

[0030] Preferably, each hinge 14 has a pivot axis X parallel to the front end face 17 of the channel plate 12 (see [reference]). Figure 6 and Figure 7 And it is fixed in the region of the end face 19 of the corner edge 18 of the foldable channel plate 12 facing the channel plate base section 9 (see...). Figure 9 ).

[0031] Especially Figure 3 and Figure 9 As shown, the hinge 14 preferably has at least one pivot 20 arranged vertically or obliquely, the pivot having a head bolt 21 that serves as a pivot neck support and can be inserted into at least one support hole 22, wherein the support body of the support hole 22 can be supported on the support structure 15.

[0032] Preferably, hinge 14 has two pivot axes X and Y (see...) Figure 9 In the case of ), the support holes 22 and 24, which are arranged at intervals from each other, are stacked in the vertical direction.

[0033] Preferably, the support structure 15 is supported on the frame 2 of the paving machine. Figure 1It is also shown that the channel plate assembly 8 includes an extension channel plate 13 on the side of the pavement base 19, the extension channel plates being rigidly connected to each other so that the effective width of the channel plate assembly 8 can be selectively adjusted in the horizontal direction by means of the removable extension channel plate 13 according to the amount of extension of the lateral distribution worm and the pavement 10 having the pavement extension 25.

[0034] Preferably, at least one support rod is provided on the left and / or right side of the paving machine, one end of the support rod is fixed to the frame / traveling mechanism of the paving machine, and the other end is fixed to the channel plate device 8.

[0035] The locking element 16 can be locked by means of a locking mechanism, a latch, or a double hinge with two hinge axes X and Y.

[0036] Preferably, the locking element 16 may include a double-hoofed pin with a pin that can be inserted into or pulled out of the corresponding hinge 14 in the open and closed positions of the passageway panel door 12.

[0037] Preferably, the support structure 15 is fixed adjacent to the traction arm 3 of the pavement 4.

[0038] The paving machine's traveling mechanism 1 is a tracked traveling mechanism or a wheeled traveling mechanism.

[0039] Preferably, a control unit may be provided for controlling the effective width of the channel board device 8 according to the working width of the paving board.

Claims

1. A paving machine comprising a frame (2) supported by a traveling mechanism (1), at least one primary drive source, a hydraulic system, a paving slab (4) hingedly supported by a traction arm (3), and an asphalt supply device, the asphalt supply device comprising a storage tank (5), a longitudinal conveying device (7) for conveying from the storage tank (5) to a transverse distribution worm (6), and a channel plate device (8) arranged in front of the transverse distribution worm (6) along the paving travel direction (R), the channel plate device having a channel plate base section (9) of a transverse distribution channel (11) disposed in front of the paving slab base (10) of the paving slab (4), characterized in that, The channel plate assembly (8) has at least segmented foldable channel plates (12, 13) on the side of the paving plate base (10) and relative to the transverse direction of paving travel (R), as an extension of the channel plate base section (9). The channel plates are rotatably hinged to the support structure (15) adjacent to the channel plate base section (9) by means of hinges (14) around at least one pivot axis (X) as foldable channel plates (12, 13) and locked by locking elements (16) to prevent accidental pivoting.

2. The paving machine according to claim 1, characterized in that, In order to transport the paving machine, the foldable channel plates (12, 13) can be folded up as pivotable, side-mounted covers for the traveling mechanism (1).

3. The paving machine according to claim 2, characterized in that, The foldable channel plates (12, 13) can be positioned with an opening angle of + / -10° relative to the outer boundary of the side of the trimmer.

4. The paving machine according to any one of claims 1 to 3, characterized in that, Each hinge (14) has a pivot axis (X) parallel to the front end face (17) of the channel plate (12) and is fixed in the region of the end face (19) of the foldable channel plate (12) facing the corner edge (18) of the channel plate base section (9).

5. The paving machine according to any one of claims 1 to 4, characterized in that, The hinge (14) has at least one pivot (20) arranged vertically or obliquely, the pivot having a head bolt (21) that serves as a pivot neck support and can be inserted into at least one support hole (22), wherein the support body of the support hole (22) can be supported on the support structure (15).

6. The paving machine according to claim 5, characterized in that, In the case where the hinge (14) has two pivot axes (X), the support holes (22) arranged at intervals to each other are arranged overlapping in the vertical direction.

7. The paving machine according to any one of claims 1 to 6, characterized in that, The support structure (15) is supported on the frame (2) of the paving machine.

8. The paving machine according to any one of claims 1 to 7, characterized in that, The channel plate device (8) includes extension channel plates (12, 13) on the side of the paving plate substrate (10), the extension channel plates being rigidly connected to each other so that the effective width of the channel plate device (8) can be selectively adjusted in the horizontal direction by means of the removable extension channel plates (12, 13) according to the extension amount of the lateral distribution worm (6).

9. The paving machine according to any one of claims 1 to 8, characterized in that, At least one support rod is provided on the left and / or right side of the paving machine, one end of which is fixed to the frame (2) / travel mechanism (1) of the paving machine, and the other end is fixed to the channel plate device (8).

10. The paving machine according to any one of claims 1 to 9, characterized in that, The locking element (16) is locked by means of a latching mechanism, a bolt, or a double hinge with two hinge axes (X, Y).

11. The paving machine according to any one of claims 1 to 10, characterized in that, The locking element (16) includes a double-hoofed pin with a pin that can be inserted into or pulled out of the corresponding hinge (14) in the open and closed positions of the passageway panel doors (12, 13).

12. The paving machine according to any one of claims 1 to 11, characterized in that, The support structure is fixed adjacent to the traction arm (3) of the pavement slab (4).

13. The paving machine according to any one of claims 1 to 12, characterized in that, The walking mechanism (1) is a tracked walking mechanism or a wheeled walking mechanism.

14. The paving machine according to any one of claims 1 to 13, characterized in that, A control unit is provided for controlling the effective width of the channel board device (8) according to the working width of the paving board (4).

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